Jasmonate activated PuCBF5 to increasing ester accumulation in cold-stored 'Nanguo' pear fruit
Copyright © 2025 Elsevier Masson SAS. All rights reserved.
| Publié dans: | Plant physiology and biochemistry : PPB. - 1991. - 222(2025) vom: 06. Mai, Seite 109722 |
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| Auteur principal: | |
| Autres auteurs: | , , , , , , |
| Format: | Article en ligne |
| Langue: | English |
| Publié: |
2025
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| Accès à la collection: | Plant physiology and biochemistry : PPB |
| Sujets: | Journal Article Cold storage Fruit aroma Methyl jasmonate ‘Nanguo’ pear Cyclopentanes Oxylipins Esters Acetates Plant Proteins plus... |
| Résumé: | Copyright © 2025 Elsevier Masson SAS. All rights reserved. 'Nanguo' pear is a distinctive fruit from Liaoning Province and is highly appreciated by consumers. However, its aroma quality has been observed to diminish after cold storage. Methyl jasmonate (MeJA) is a plant hormone that can promote the esters accumulation in fruits while the exact molecular mechanisms still unclear. In this study, the expression of ester degradation gene PuCXE15 decreased in the cold-stored 'Nanguo' pear with MeJA treatment. MeJA may regulate the metabolism of esters through the CBF (C-repeat binding factor) pathway. Five CBF members were identified in 'Nanguo' pear, among which PuCBF5 was responsive to MeJA. PuCBF5 is a nuclear-localized transcription factor and a positive regulator of ester metabolism. Further experiments showed that PuCBF5 could inhibit the transcriptional activity of PuCXE15 and thus inhibit the degradation of esters. The results provide important insights into the transcriptional control of volatile ester metabolism in 'Nanguo' pear |
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| Description: | Date Completed 06.05.2025 Date Revised 06.05.2025 published: Print-Electronic Citation Status MEDLINE |
| ISSN: | 1873-2690 |
| DOI: | 10.1016/j.plaphy.2025.109722 |